[DoubleF]

Originally Posted by 81MC

Removing rust stains from concrete?
Long story short, I was a dummy and made a bunch of metal dust and let it sit under a project for a few months. Need to get it taken care of ASAP, and the best rated product doesn't seem available in Canada.

CLR?

https://www.canadiantire.ca/en/pdp/c...-0530342p.html